N6BT is still around, I just ordered and received his "Array Of Light"
book not long ago. I would recommend it highly for anyone who owns
and wants to work on or better understand the workings of the
Force 12 antennas.
Tom
K0SN
On Sun, Dec 6, 2015 at 7:58 AM, Gary <gary_mayfield@hotmail.com> wrote:
> I'm not sure there was anything that ever really resembled a manual. My
> father wa0eaf has a 10 & 15 meter Force 12 antenna from back in the day. It
> has 4 elements on each band with separate feeds, and no 20 meters all on
> one boom.
>
> It is a good antenna - has held up well in KS weather - and is still a
> good performer. We never got anything like a manual, just a drawing with
> some (not all) of the dimensions. Tuning the hairpins was a nightmare of
> trial and error.
>
> 73,
> Joe kk0sd
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
> Richard Vincent
> Sent: Sunday, December 06, 2015 8:36 AM
> To: towertalk@contesting com
> Subject: [TowerTalk] Force 12 c3 xl
>
> Thanks everyone for the replies. I tried contacting Force 12 but was told
> they don't have any records that old. I have also sent Tom an email but
> never got a reply, I may have gotten the wrong email and will try again.
>
> I put this beam up for my Elmer when he bought it. It was on top of a 82
> foot crank up with a 2 element 40 meter and an 80 rotatable dipole. These
> antennas were up about a year and a half when he moved to a new QTH. At the
> new QTH he decided on 2 towers and instead of using this antenna he went
> with stacked mono handers. This triband has been bundled up in a shed since.
>
> My biggest concern putting this back up is the hairpin. They are soft
> aluminium tubing that have been straightened out for storage. I am assuming
> the longest is for 20, next for 15, etc. What about the shape of the
> hairpin, shorter with wide spacing, or longer with narrow spacing?
>
> I plan on putting this on top of 80-90 feet of Rohn 45 with a 6 and 2
> meter beams on top. I weighed the bundles and it totaled right at 80
> pounds. I would also like to know the wind load specs. I have a Yaesu 1000
> rotator but also wondering if it will be hefty enough.
>
>
> _______________________________________________
>
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